Account for HTTP/2 padding in receive windows.

net/spdy/spdy_stream.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_SPDY_SPDY_STREAM_H_
 #define NET_SPDY_SPDY_STREAM_H_
 
 #include <deque>
 #include <string>
 #include <vector>
@@ skipping 244 matching lines @@
 
   // Called by OnReadBufferConsume to increase this stream's receive
   // window size by |delta_window_size|, which must be at least 1 and
   // must not cause this stream's receive window size to overflow,
   // possibly also sending a WINDOW_UPDATE frame. Does nothing if the
   // stream is not active.
   //
   // If stream flow control is turned off, this must not be called.
   void IncreaseRecvWindowSize(int32 delta_window_size);
 
-  // Called by OnDataReceived (which is in turn called by the session)
-  // to decrease this stream's receive window size by
+  // Called by OnDataReceived or OnPaddingConsumed (which are in turn called by
+  // the session) to decrease this stream's receive window size by
   // |delta_window_size|, which must be at least 1 and must not cause
   // this stream's receive window size to go negative.
   //
   // If stream flow control is turned off or the stream is not active,
   // this must not be called.
   void DecreaseRecvWindowSize(int32 delta_window_size);
 
   int GetPeerAddress(IPEndPoint* address) const;
   int GetLocalAddress(IPEndPoint* address) const;
 
@@ skipping 31 matching lines @@
   // OnResponseHeadersReceived.
   //
   // |buffer| contains the data received, or NULL if the stream is
   //          being closed.  The stream must copy any data from this
   //          buffer before returning from this callback.
   //
   // |length| is the number of bytes received (at most 2^24 - 1) or 0 if
   //          the stream is being closed.
   void OnDataReceived(scoped_ptr<SpdyBuffer> buffer);
 
+  // Called by the SpdySession when padding is consumed to allow for the stream
+  // receiving window to be updated.
+  void OnPaddingConsumed(size_t len);
+
   // Called by the SpdySession when a frame has been successfully and
   // completely written. |frame_size| is the total size of the frame
   // in bytes, including framing overhead.
   void OnFrameWriteComplete(SpdyFrameType frame_type, size_t frame_size);
 
   // SYN_STREAM-specific write handler invoked by OnFrameWriteComplete().
   int OnRequestHeadersSent();
 
   // DATA-specific write handler invoked by OnFrameWriteComplete().
   // If more data is already available to be written, the next write is
@@ skipping 235 matching lines @@
   bool write_handler_guard_;
 
   base::WeakPtrFactory<SpdyStream> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SpdyStream);
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_STREAM_H_